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Finding the Fourth Proportional to 25,700,983.30, 38,551,607.88 and 8,661,803.86

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Solution

The fourth proportional to 25,700,983.30, 38,551,607.88 and 8,661,803.86 is: 12,992,750.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,700,983.30 : 38,551,607.88 = 8,661,803.86 : x
  2. Step 2: Convert to fraction form
    25,700,983.30/38,551,607.88 = 8,661,803.86/x
  3. Step 3: Cross multiply
    25,700,983.30x = 38,551,607.88 × 8,661,803.86
  4. Step 4: Simplify right side
    25,700,983.30x = 333,926,465,944,190.44
  5. Step 5: Solve for x
    x = 333,926,465,944,190.44/25,700,983.30
  6. Step 6: Final answer
    x = 12,992,750.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.